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So this happened this morning. The screws holding my Holosun 507 COMP on my Springfield Armory Echelon sheared off and sent the optic flying right into my hat cam. Unfortunately, it wasn’t recording. This is the first issue I’ve had like this with any of my Echelons. This one has the most rounds on it since I’ve been training and competing with it since mid last year. I mounted the optic around November using blue Loctite and torqued the screws to about 15 in-lbs. I didn’t shoot much in December and January due to an injury, but since then I’ve put roughly 2,000 rounds through it. Mostly 124gr and 147gr. I’m not an engineer so maybe someone smarter than me can tell me what the failure point was? Obviously, the screws sheered but wouldn’t that say they were taking the brunt of the recoil instead of the recoil lugs?
USA Carry88,540 views • 4 months ago
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